Strainer head for tubing machines



Oct. 26 1926. 1,604,662

V. ROYLE STRAINER HEAD FOR TUBING MACHINES Filed Jan. 25, 1922 2 Sheets-Sheet 1 V. ROYLE STRAINER HEAD FOR TUBING MACHINES Filed Jan. 25, 1922 v 2 ts sheet z Patented Oct. 26, 1926.

VERNONROYLE, orra'rnnson, new JERSEY.

STRAINER HEAD For. TUBING MACHINES.

Application filed J'anuary 25, 1922. Serial No. 531,797.

This invention relates to a strainer head tor tubing machines, with an object in View of providing a device of this character that will adapt the machine for satisfactory and expeditious operation upon materials of varying characteristics without producing an undue strain upon any of the parts or irregularity in operation. a

Another object is to provide 'such a device which may be applied to. standard forms of tubing machines without thenccessity of partial reconstruction or alteration. 4

Another object is to provide a device of this character which may be very quickly and simply opened for cleaning and access to the inner parts and as quickly and easily returned to operative position.

Auotl'ier objects consists in providing a device of this character in which the separable parts of the strainer head are so braced and interlocked as to guard against distortion or breakage. V l Another object consists in providing certain improvements in the form, construction and arrangement of the several parts whereby the above named and other objects may be eii ectivcly attained. a I

Machines of this character are designed to operate upon rubber compounds, including various substances, during the process of recluin'iing the rubber, and these materials vary greatly in consistency. Consequently, it has been found that strainer heads heretofore in use have not been fully adequate to handling these diflferent materials with satisfactory results in all respects. My invention is designed to overcome this disadvantage.

' A practical embodiment of myinvention is represented in the accompanying drawings in which Fig. 1 represents atop plan View of strainer head secured to the cylinder of a tubing machine, the latter being broken away.

Fig. Fig. 3 represents a horizontal central sec-' tion through the part shown in Fig. 1, certain elements being shown in different positions in full and dotted lines. a

Fig. 4 represents a sectiontaken planeof lines IV-IVof Fig. 1, looking in the direction of the arrows. a

Fig. 5 represents a large detailed section which are substantially identical.- 2 represents a face view of the same. 7.

in the showingthe means for locking the two parts of the strainer head.

Fig. 6 represents an enlarged detailed section, showing the locking bar and adjacent parts. i p

The strainer head is adapted for use in connection with a tubing machine of standard or appropriate form and is, as will be understoodby operatives in this industry, intended to be secured to the cylinder. of

the tubing machine in which the screw or plodder operates.

In the present instance, the cylinder is denoted by 1 and the liner for its bore by 2.

-The screw or plodde'r which operates in" the said bore n the usual manner 18 lndicated The strainer head includes a face plate l,

which constitutes a supporting member and is of such size as to conform substantially to the end of the cylinder 1. The said plate has four holes fitted to receive stud bolts 5:

that project from'the cylinder and receive nuts 6 for securing the plate to the cylinder. The plate t is of open construction and its .inner diameter corresponds with the outer diameter of the liner 2. A suitable washer 7 may be interposed between the plates and the cylinder 1.

The strainer head also includes a tubular element that has an inner member 8, which is threaded into the bore liner 2, as clearly shown at 9, and engages with a sliding fit the interior of the face plate 4. The inside of the member 8 is directly in line with and ot the same diameter as theinteriorot the liner 2, so that the said member, in eitect, constitutes a prolongation of the bore of the cylinder in which the screw 3 can operate. Theiorward end of the member 8 is open and its'side walls are pierced by a multiplicity of circular holes 10.- 7

so I

The said tubular element also comprises from the member 8. When the said halves are swung toward each-other to the limit of their movement, they together constitute a member of cylindrical form, which is con-.

centric with and surrounds the inner mem her 8, leaving a space between sald two members.

The forward ends of-thehalves 11, 12, are' provided with threaded flanges 19, QO WlllCh,

when united, are uesigned to "receive'a' nut 21, which locks them together. Sultable spacing plugs 22 are carried by the half 12 in position to be engaged by the edge of the half 11. in order to assist in proper align- .nent of the two halves and matchmg'of the threadson the flanges 19, 20, so that the nut adiustinent eifected by filing.-

The plate 4 has a circular rib 23 formed thereon surrounding the inner member 8, which rib constitutes a shoulder against which the inner ends of the halves 11, 12 rest when closed together, thereby insuring rigidity and also assisting in perfect alignment of the parts. The halves 11, 12 are also provided with a multiplicity of circular holes 24, 25, and it will be noted that the diameter of these holes is'considerably less than the diameter of the holeslO in the inner member 8, and that the holes in the said outer and inner members are not coincident, that is, are not in line. 7

The end rnember 26 is fitted to seat. within the-front portionof the outer member com posed of the halves 11, 12, and to be secured therein by theinut 21, which clamps the said end member between itself and the inner member 8. This end member also has a multiplicity of circular holes 27 passing therethrough; It will beobserved from the foregoing description that the holes in the inner and outer tubular members he at right her 8 and the outer member constituted by the halvesll, 12, and lieadjacent the interior of the latter when they are in closed position. A flat screen 30 is placed between the end member 26 and the. inner member 8 and clamped in position through the action of the nut 21. The rear ends of'thehalves 11, 12 are bevelled ,ofi as shown at 31, 32,

so as to clear the member 8,when the halves medium to the head. By arranging. the

strainer head is very great, it will be apparent that there is a severe strain upon the halves 11, 12 .of the'outer member and a tendency to cause them-to bulge and separate intermediate to their ends.

In order to meet this tendency and prevent any injury from occurringl provide a pair of lock bars 36, 37 whi ch are provided with hinged knuclrles'38, 39 that engage pintles 40, 41 which are mounted iii-lugs 42, 43 that are formed integrally with the face plate 4. As a resultof this arrangement the said lock bars can swing vertically or in a plane at right angles to the plane of swinging movement of the halves 11, 12, so as tosbe brought into or out of cooperative or locking en gagementwith the said halves when the latter are in closed or operative position. The lock bars 36, 37 have their inner faces pro vided with longitudinal grooves'or channels 44,45 which leave a pair of ribs 46, 47 at each side of the said channels. The adjacent parts of the halves 11, 12 are provided with two pairs of grooves 48, 49 fitted to receive the said ribs 46, 4"; and it will be seen that the fashioning of these grooves 48, 49 produces corresponding pairs of ribs 50, 51 which are adapted to enter the channels 45 in the lock bars 36, 37. This constrution enables each of the said lock bars to interlock with thehalves 11, 12 throughout the length of the latter so as to firmly hold them in operative alignment and prevent any distortion of the same during the operation of the machine. It will be noted that thegrooves 48,49 are larger in cross section than the ribs 46, 47 so that there may be ready interengagement of the parts, the outersides of the said grooves and ribs being slightly rounded so as to facilitate this. However, the operative engaging faces of the said ribsand grooves are straight and parallel so as to cause the locking to be rigid withfthe parts in perfect alignment. This construction is well shown in Fig. 6.

For the purpose of firmly clamping and securing the lock bars in engagement with the'halves of the outer member of the strainer head, the nut 21 has a circular groove 52 which is beveled on'its outer edge, and this be'vel'isdesigned to cooperate with corre-' sponding bevels formed on the exterior of the extremities ofthe lockbars 36, 37. The arrangement is such that, as the nut 21 is screwed on the unitedxhalves 11, '12, the groove52 passes over the extremities ofthe as clearly'shown in Fig. 5. Thus theact-ion of the nut 21 is to hold the end member 26, halves 11, 12 and lock bars 36, 37 all inoperative position; while the said halves prevent any lateral movement of the end memher, and the said lock bars prevent any lateral distortion of the said halves.

.The apparatus may be employed in the usual way, with the halves 11, 12 of the outer tubular member held in closed position,

as shown in Figs. 1, 2 and 4. As already described, there is a space between the inner tubular member Sand the outer member composed of the halves 11, 12, while the screen 28 is spaced from the said inner member and in contact with the interior of the said outer member. As a result of this construction, the material being operated upon The operation is also facilitated by making the holes 10 in the inner member greater in cross section than the holes 24, 25 in the outer member, since this enables the mate rial whichhas not yet been strained, to pass more freely through the inner member,while the passage of the material through the screen28 is slightly retarded by the smaller holes 24. 25, thereby protecting the screen from violent action. The fact that the holes in the inner and outer membersare not in line, requires the material to follow an indirect course, which increases the effectiveness of the apparatus under certain circumstances: and by perforating the entire side and end walls of the strainer head, the outlet for material is greatly increased. thus increasing the capacity of the machine. Finally the provision of the lock bars for the halves of the outer member, and for cooperation with the lock nut 21, supplies abundant protection for the halves of the outer member against bulging or injury throughout their length, which bulging might re suit from the forceful movement of the material bemg operated upon if the said parts were not thus reinforced. i

By providing the inner member 8 with a portion which bears against the/inner circumference of the plate 4 and also bears against the end of the bore liner 2 as well as being threaded into the latter, the assembly of the said inner member with the machine is made very firm and rigid, so that thesaid member will maintain perfect alignment and will be enabled to resist the great strain imparted to it.

j Should the strainer head become clogged, as frequently happens, or should it, for any it is a very simple matter to remove the nut 21 and swing the lock bars 36, 37 and halves 11, 12 apart, thus exposing the interior of the said halves and the exterior of the screen 28 for cleaning. With the nut 21 removed, the end member 26 may also be readily taken out and the screens 28 and 30 detached for cleansing or repair. The parts may be replaced and returned to operative position in a manner obvious from the scription,

It will be understood'that various changes may be resorted: to in the form, construction and arrangement of the several parts without departing from the spirit and scope of my invention; and hence I do not intend to described, except as they may be included in the claims.

What I claim is:

lQA device of the character described comprising, a tubular element including a member divided to form a plurality of parts. I said parts being fitted to be moved into and out of operative position, and means dis-- posed longitudinally of said parts for locking their'edges in operative position.

.2. A device of the character described cOInprisingQa tubular element including a member divided to form a plurality of parts. said parts being fitted to be moved into and out of operative position, and means disaosed longitudinally of said parts and 10- cated at opposite sides thereof for locking their edges in operative position.

3. A device of the character described comprising, a tubular element including a member divided to form a plurality of parts.

said parts being fitted 'to be moved into and out of operative position. and means disposed'longitudinally of said parts for looking their edges. in operative position, said means being adapted to be swung into and outvof operative position.

i. A device of the character described comprising, a tubular element including a member divided to form a plurality of parts, said parts being fitted to be moved into and out of operative position, means disposed longitudinally of said parts for locking their edges in operative position, and means for holding said locking means in looking posi tion. I

5. A device of the character described comprising, a tubular element including a member divided to form a plurality of parts, said parts beingfitted to be moved into and out of operative position, means disposed.

foregoing dereason, be desirable to clean any part thereof,

we limited to the details herein shown and r in operative position and toalsoengage-said lociring means for holding it in operative position.

A device of the character described comprising. a tubular element including a member divided to form a plurality of parts, said parts being fitted to be moved into and out of operative position, and a lock bar disposed longitudinally of said parts and adapted to interengage with the same for holding their edges in operative position.

7. A device-of the. character described comprising, a tubularelement including a member divided to form a plurality of parts, said parts being fitted to be moved into and out of operative position, and a plurality of lock bars disposed longitudinally of said parts and adapted to inter-engage iviththe same tor holding their edges in operative position. r

8. A device of the character described comprising, a tubular element including a member divided to form a plurality of parts, said parts being fitted to-be moved into and out of operative position, a lock bar disposed lon itudinallv of said arts and ada Jted to I C v n L I interengage with Lhesame tor holding their edges in operative position, and a cap fitted and a cap fitted. toengagethe ends of said.

parts to hold them in operative position and to also engage said lock bars for holding them in locking position.

10. Adevice of the character described. comprising, a tubular element includinga.

member divided to form a plurality of parts, said parts being fitted to be moved nto and out of operative position, and a lock bar pivoted near one end of said parts and.

adapted to swin longitudinallyqvith respect thereto for interengagcment therewith for holdingtheir edges in operative position.

11. A; device of the character described comprising, a tubular element including a member divided'to form a plurality of parts,

said parts being fitted to be moved into and out of operative positiomand a plurality of lock bars pivoted near-one end of sai'dxparts and adapted to swing longitudinally with respect thereto for interengagement-therewith for holding their edges in operative po -s sitions 12. A device of the character described comprising, a tubular element including'a member divided to form a plurality of parts,

said parts being fitted to be moved into and out of operative position, a lock bar pivoted near one end of "said partsand adapted to swing longitudinally Wlth respect thereto for interengagement therewith for holding their edgesinoperative position, anda cap fitted to. engagethe ends of said parts for holding them in operative positlon and to also engage said lock bar for holding it in said parts being fittedto be moved into and out of operative position, a lock bar pivoted near one end of saidQparts and adapted to swinglongitudinally Witlrrespect thereto for interengagement therewith for holding their edges in operativeposition, and a cap fitted to engage the ends of said parts for holding them in operative position, the-said cap having a groove adapted to receive the end of said lock bar for holding it in locking po sition.

let. A device of the character described comprising, a tubular element including a member divided to torma plurality ofparts,

said parts being fitted to be moved into and out oi? operative position, a lock bar pivoted near one end of said parts and adapted to swing longitudinally with respect thereto for lnterengagement therewith] for holding their edges in operative position, and a cap,

fitted to engage the ends of said parts for holding them inoperative posit'iomsaid loci: bar having a tapered end and, said cap being provided With a bevelled groove fitted to receive said tapered end for holding the lock bar in locking position.

15. A device of the character described comprising, a tubular element including a member divided toform a plurality of parts, said parts being fitted to be moved into and out of operative position, and a lock bar disposed longitudinally of said parts, said lock bar having a longitudinal channel, and said parts having projecting ribs adapted to enter fitted to engage the ends of said parts to hold them in operative position and toalso engage said lock bar to hold it in locking position.

17. A device of the character descr bed comprising, 'a tubular element incli'idmg a and ribs fitted to mate with the channel and ribs on the lock bar, whereby the lock bar may lock said parts in operative position.

18. A device or" the character described comprising, a tubular element including a member divided to form a plurality of parts, said parts being fitted to be moved into and out of operative position, a lock bar disposed longitudinally of said parts, said lock bar having a longitudinal channel and ribs, said parts having longitudinal grooves and ribs fitted to mate with the channel and ribs on the lock bar, whereby the lock bar may lock said parts in operative position, and a cap fitted to engage the ends of said parts to hold them in operative position and to also engage said lock bar to hold it in locking po sition.

19. A device of the character described comprising, a tubular element including a member divided to form a plurality of parts, said parts being fitted to be moved into and out of operative position, and alock bar pivoted near one end of said parts, said lock bar having a longitudinal channel, said parts having projecting ribs adapted to enter said channel, whereby the lock bar may look the said parts in operative position.

20. A device of the character described comprising, a tubular element including a member divided to form a plurality of parts, said parts being fitted to be moved into and out of operative position, a lock bar pivoted near one end of said parts, said lock bar having a longitudinal channel, said parts having projecting ribs adapted to out of operative position, and a lock bar pivoted near one end of said parts, said lock bar having a longitudinal channel and ribs, said partshaving longitudinal grooves and ribs fitted to mate with the channel and ribs on the lock bar, whereby the lock bar may lock said parts in operative position.

22. A device of the character described comprising, a tubular element including a member divided to form a plurality of parts, said parts being fitted to be moved into and out of operative position, a lock bar pivoted near one end of said parts, said lock bar having a longitudinal channel and ribs, said parts having longitudinal grooves and ribs fitted to mate with the channel and ribs on the lock bar, whereby'the lock bar may lock said parts in operative position, and a cap fitted to engage the ends of said parts for holding them in operative position, said cap being provided with a groove adapted to engage the end of said lock bar "for holding it in locking position. i

23. A device of the character described comprising, a tubular element including a member divided to form a plurality of parts,

said parts being fitted to be moved into and out of operative position, a lock bar pivoted near one end of said parts and having its free end tapered, said lock bar having a to engage the ends of said parts for holding them in operative position, said cap being provided with a bevelled groove adapted to engage the tapered end of said lock bar for holding it in locking position.

24;. Incombination with the cylinder of a tubing machine having a bore liner, a strainer head including a perforate element fitted to be threaded into said bore liner and have a sliding fit within the said cylinder.

25. In combination with the cylinder of a tubing machine having a bore liner, a strainer head including a perforate element fitted to be threaded into said bore liner and have a sliding fit within said cylinder while abutting the end of said liner.

26. In combination with the cylinder of a tubing machine, a strainer head, a plate for securing the strainer head to said cylinder, said strainer head having a perforate ele ment fitted to be threaded into said cylinder and have a sliding fit with the interior of said plate.

27. In combination with the cylinder of a tubingmachine, having a bore liner, a strainer head, a plate for securing the strainer head to said cylinder, a perforate element fitted to be threaded into said liner and have a sliding fit with the interior of said cylinder and plate.

28. In combination with the cylinder of a tubing machine, having a bore liner, a strainer head, a plate for securing the strainer VERNON RGYLE. 

